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Differences What are the advantages of each

Front view of Intel Core i7 3970X

Reasons to consider the
Intel Core i7 3970X

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Higher clock speed 3.5 GHz vs 2.8 GHz More than 25% higher clock speed
Significantly better PassMark (Single core) score 2,047 vs 1,046 More than 95% better PassMark (Single core) score
Much more l3 cache per core 2.5 MB/core vs 1 MB/core 2.5x more l3 cache per core
Better PassMark score 12,923 vs 9,595 Around 35% better PassMark score
Front view of AMD Opteron 6287 SE

Reasons to consider the
AMD Opteron 6287 SE

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Much more l2 cache 16 MB vs 2 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
More cores 16 vs 6 10 more cores; run more applications at once
Much more l2 cache per core 1 MB/core vs 0.33 MB/core More than 3x more l2 cache per core
More threads 16 vs 12 4 more threads

Benchmarks Real world tests of Core i7 3970X vs Opteron 6287 SE

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 3970X  vs
Opteron 6287 SE 
Clock speed 3.5 GHz 2.8 GHz
Cores Hexa core 16 core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES

details

Core i7 3970X  vs
Opteron 6287 SE 
Threads 12 16
L2 cache 2 MB 16 MB
L2 cache per core 0.33 MB/core 1 MB/core
L3 cache 15 MB 16 MB
L3 cache per core 2.5 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 4

power consumption

Typical power consumption 121.88W N/A

bus

Architecture DMI 2.0 HyperTransport 3.0
Transfer rate 5,000 MT/s 6,400 MT/s
Intel Core i7 3970X
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AMD Opteron 6287 SE
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